Table 1. Data-extraction of included studies.

	N Type of injury	Definition RTPf	Athletes RTPf (%)	Functional performance tests	Timing functional performance tests	Timing follow-up	Outcomes
Ardern et al., 2011b	503 ACLR	Return to full competition	33.4% attempted full competition (n=168)	Single hop for distance Crossover hop for distance	12 months following ACLR	12 months following ACLR	Athletes with good results on both hop test were significantly more likely than athletes with poor results to have attempted full competition RR 2.5 (95% CI 1.4-4.4)
Edwards et al., 2018	113 ACLR	Return to level I or level II on the NSARS	64% (n=72)	Single hop for Distance Crossover hop for distance Triple hop for distance 6-meter timed hop	10-14 months following ACLR	10-14 months following ACLR	Single hop for distance (LSI %)* RTPf 94.2 ±8.2; No RTPf 77.1 ±17.6 Crossover hop for distance (LSI %)* RTPf 94.0 ±8.2; No RTPf 76.4 ±20.7 Triple hop for distance (LSI %)* RTPf 94.6 ±8.9; No RTPf 77.9 ±19.1 6-meter timed hop (LSI %)* RTPf 94.0 ±8.8; No RTPg 78.4 ±18.6
Hamrin Senorski et al., 2017	157 ACLR	Return to pre-injury Tegner	33% (n=52)	Single hop for distance Vertical jump Side hop	10 (6-18) months following ACLR	10 (6-18) months following ACLR	Men Vertical jump IL (cm/kg)RTPf 0.26 ±0.07; No RTPf 0.27 ±0.07 Vertical jump NL (cm/kg)RTPf 0.29 ±0.05; No RTPf 0.27 ±0.06 Single hop for distance IL (cm/kg)RTPf 2.0 ±0.3; No RTPf 2.0 ±0.3 Single hop for distance NL (cm/kg)RTPf 2.1 ±0.4; No RTPf 2.1 ±0.4 Side hop IL (n/kg)RTPf 0.8 ±0.1; No RTPf 0.7 ±0.2 Side hop NL (n/kg)RTPf 0.8 ±0.1; No RTPf 0.7 ±0.1 Women Vertical jump IL (cm/kg)RTPf 0.23 ±0.04; No RTPf 0.21 ±0.06 Vertical jump NL (cm/kg)RTPf 0.26 ±0.04; No RTPf 0.27 ±0.03 Single hop for distance IL (cm/kg)RTPf 2.1 ±0.4; No RTPf 1.9 ±0.3 Single hop for distance NL (cm/kg)RTPf 2.1 ±0.3; No RTPf 2.0 ±0.3 Side hop IL (n/kg)*RTPf 0.7 ±0.2; No RTPf 0.5 ±0.2 Side hop NL (n/kg)*RTPf 0.8 ±0.2; No RTPf 0.6 ±0.2
Langford et al., 2009	65 ACLR	Return to full competition	52% (n=33)	Single hop for Distance Crossover hop for distance	12 months following ACLR	12 months following ACLR	Single hop for distance (LSI %)RTPf 90.95±8.21; No RTPf 88.87 ±9.77 Crossover hop for distance (LSI %)RTPf 92.32±.50; No RTPf 91.85±10.40
Lee et al., 2019	52 PCLR	Previous sports activity level	9 months following PCLR: 73% (n=38) 24 months following PCLR: 87% (n=45)	Single hop for distance Vertical jump	9, 12, and 24 months following PCLR	29.5 ± 8.6 months following PCLR	Single hop for distance (LSI%) RTPf 95.8±11.8; No RTPf 88.6±10.5 Vertical jump (LSI%)*RTPf 94.7 ±10.0; No RTPf 87.2 ±9.7* LSI Vertical jump significantly associated with not returning to pre-injury sports activity levels at 9 monthsOR 2.2 (1.212-9.227)
Muller et al., 2015	39 ACLR	Return to pre-injury level of sport	79% (n=31)	Single hop for distance Crossover hop for distance Triple hop for distance Square hop	6 months following ACLR	7 months following ACLR	Single hop for distance (LSI %)* RTPf 85.6 ±20.0; No RTPf 61.7 ±20.5 Crossover hop for distance (LSI %)* RTPf 91.9 ±14.3; No RTPf 75.1 ±18.5 Triple hop for distance (LSI %)* RTPf 88.3 ±10.1; No RTPf 72.1 ±13.1 Square hop (LSI %) RTPf 87.5 ±20.4; No RTPf 83.8 ±44.6 AUC (LSI %) RTPf Single hop for distance 0.823 (75.4) Crossover hop for distance 0.762 (77.2) Triple hop for distance 0.839 (90.2)
Nawasreh et al., 2018	95 ACLR	Return to pre-injury activity level	12 months following ACLR: 61% (49/80) 24 months following ACLR: 67% (60/80)	Single hop for distance Crossover hop for distance Triple hop for distance 6-meter timed hop	6 months following ACLR	12 months following ACLR	Single hop for distance OR (95% CI) 12 months 1.07 (1.01-1.14); 24 months 1.15 (1.05-1.26)* Crossover hop for distance OR (95% CI) 12 months 1.06 (0.99-1.15); 24 months 1.12 (1.03-1.21)* Triple hop for distance OR (95% CI) 12 months 1.11 (1.02-1.20); 24 months 1.17 (1.05-1.31)* 6-meter timed hop OR (95% CI) 12 months 1.13 (1.04-1.22); 24 months 1.18 (1.06-1.31)*
Webster et al., 2019	222 ACLR	Return to pre-injury sports	61% (n=135)	Single hop for distance Crossover hop for distance	12 and 24 months following ACLR	3 years (range 2-4 years)	Average LSI (%) single and crossover hop for distance RTPf 98 ±9; No RTPf 95 ±11 OR 1.03 (95% CI 1.00 – 1.06)

*Significant difference between return to performance or not (p<0.05), ACLR=Anterior Cruciate Ligament Reconstruction, AUC=Area Under Curve, CI=Confidence Interval, cm=centimeter, IL=Injured Limb, kg=kilogram, LSI=Limb Symmetry Index, NL=Noninjured Limb, NSARS=Noyes Sports Activity Rating Scale, OR=Odds Ratio, ROC=Receiver Operating Curve, RR=Risk Ratio, RTPf=Return to performance.